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Related Concept Videos

Administering Oxygen by Mask01:30

Administering Oxygen by Mask

333
Administering Oxygen by Mask
Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:
333
Oxygen Delivering System I: Nasal Cannula and Face Mask01:26

Oxygen Delivering System I: Nasal Cannula and Face Mask

304
The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
304
Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen01:16

Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen

560
Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
560

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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
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Graphene oxide-based rechargeable respiratory masks.

Stelbin Peter Figerez1, Sudeshna Patra1, G Rajalakshmi1

  • 1Tata Institute of Fundamental Research - Hyderabad, Sy. No. 36/P Serilingampally Mandal, Gopanapally Village, Hyderabad - 500046, India.

Oxford Open Materials Science
|April 16, 2024
PubMed
Summary

Researchers developed a low-cost N95-grade respiratory mask with electrostatic rechargeability. This PPDFGO tri mask achieves >95% filtration efficiency for 300nm particles and can be recharged via mechanical agitation.

Keywords:
N95graphene oxiderechargeable maskrespiratory masktribo-electric nanogeneratortriboelectricity

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Personal Protective Equipment

Background:

  • High demand for N95-standard respiratory masks post-COVID-19 pandemic.
  • Need for cost-effective and reusable personal protective equipment (PPE).

Purpose of the Study:

  • To demonstrate a low-cost, rechargeable mask design with high filtration efficiency.
  • To investigate the electrostatic properties and rechargeability of a novel tri-layer mask.

Main Methods:

  • Fabrication of a tri-layer mask (PPDFGO tri) using nylon, modified polypropylene (PPY), and cotton.
  • Modification of PPY with graphene oxide and polyvinylidene fluoride for the active filtration layer.
  • Testing filtration efficiency, electrostatic charge retention, rechargeability, and permeability.

Main Results:

  • Achieved >95% filtration efficiency for 300nm particles with a quality factor of ~20 kPa⁻¹.
  • Demonstrated effective triboelectric rechargeability via mechanical agitation.
  • High electrostatic charge retention (~1 nC/cm² after 5 days) and rechargeability in humid conditions (>80% RH).

Conclusions:

  • The PPDFGO tri mask offers a cost-effective solution for high-performance respiratory protection.
  • Triboelectric nanogenerator (TENG)-assisted membranes enable mask rechargeability and potential for reuse.
  • This innovation enhances the usability and sustainability of indispensable personal protective equipment.